The Collaborative International Dictionary
Isosporic
Isosporic \I`so*spor"ic\, a. [Iso- + Gr. spo`ros fruit.] (Bot.) Producing but one kind of spore, as the ferns and Equiseta. Cf. Heterosporic.
Wiktionary
isosporic
a. (context botany English) Producing only one kind of spore.